javascript - HTML 在单击时显示图形，但在烧瓶中访问时不显示

问题描述

我对烧瓶完全陌生，所以如果愚蠢的问题请原谅我

我正在学习如何使用烧瓶并希望显示由 sigma.js 生成的图形。

当我通过双击文件直接打开“svg-freestyle-renderer.html”时，它会打开并显示一个带有节点和连接的可交互网络图。

现在我想通过访问烧瓶服务器中的 html 来查看相同的图形，但是当我打开页面时，它只加载没有图形的背景颜色。我已经三重检查了我所有的文件都在正确的目录中。

直接打开 html 文件和通过我缺少的烧瓶访问它有区别吗？

这就是我在 py 文件中调用 html 的方式：

@app.route("/graph")
def draw_graph():
        return render_template('svg-freestyle-renderer.html')

这是.html：

<html>

<body>

<!-- START SIGMA IMPORTS -->
<script src="../src/sigma.core.js"></script>
<script src="../src/conrad.js"></script>
<script src="../src/utils/sigma.utils.js"></script>
<script src="../src/utils/sigma.polyfills.js"></script>
<script src="../src/sigma.settings.js"></script>
<script src="../src/classes/sigma.classes.dispatcher.js"></script>
<script src="../src/classes/sigma.classes.configurable.js"></script>
<script src="../src/classes/sigma.classes.graph.js"></script>
<script src="../src/classes/sigma.classes.camera.js"></script>
<script src="../src/classes/sigma.classes.quad.js"></script>
<script src="../src/classes/sigma.classes.edgequad.js"></script>
<script src="../src/captors/sigma.captors.mouse.js"></script>
<script src="../src/captors/sigma.captors.touch.js"></script>
<script src="../src/renderers/sigma.renderers.canvas.js"></script>
<script src="../src/renderers/sigma.renderers.webgl.js"></script>
<script src="../src/renderers/sigma.renderers.svg.js"></script>
<script src="../src/renderers/sigma.renderers.def.js"></script>
<script src="../src/renderers/webgl/sigma.webgl.nodes.def.js"></script>
<script src="../src/renderers/webgl/sigma.webgl.nodes.fast.js"></script>
<script src="../src/renderers/webgl/sigma.webgl.edges.def.js"></script>
<script src="../src/renderers/webgl/sigma.webgl.edges.fast.js"></script>
<script src="../src/renderers/webgl/sigma.webgl.edges.arrow.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.labels.def.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.hovers.def.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.nodes.def.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edges.def.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edges.curve.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edges.arrow.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edges.curvedArrow.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.def.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.curve.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.arrow.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.edgehovers.curvedArrow.js"></script>
<script src="../src/renderers/canvas/sigma.canvas.extremities.def.js"></script>
<script src="../src/renderers/svg/sigma.svg.utils.js"></script>
<script src="../src/renderers/svg/sigma.svg.nodes.def.js"></script>
<script src="../src/renderers/svg/sigma.svg.edges.def.js"></script>
<script src="../src/renderers/svg/sigma.svg.edges.curve.js"></script>
<script src="../src/renderers/svg/sigma.svg.labels.def.js"></script>
<script src="../src/renderers/svg/sigma.svg.hovers.def.js"></script>
<script src="../src/middlewares/sigma.middlewares.rescale.js"></script>
<script src="../src/middlewares/sigma.middlewares.copy.js"></script>
<script src="../src/misc/sigma.misc.animation.js"></script>
<script src="../src/misc/sigma.misc.bindEvents.js"></script>
<script src="../src/misc/sigma.misc.bindDOMEvents.js"></script>
<script src="../src/misc/sigma.misc.drawHovers.js"></script>
<!-- END SIGMA IMPORTS -->
<script src="../plugins/sigma.plugins.neighborhoods/sigma.plugins.neighborhoods.js"></script>
<script src="../plugins/sigma.layout.forceAtlas2/supervisor.js"></script>
<script src="../plugins/sigma.layout.forceAtlas2/worker.js"></script>
<script src="lib/jquery-2.1.1.min.js"></script>

<div id="container">
  <style>
    #graph-container {
      top: 0;
      bottom: 0;
      left: 0;
      right: 0;
      position: absolute;
      background-color: #455660;
    }
    .sigma-edge {
      stroke: #14191C;
    }
    .sigma-node {
      fill: green;
      stroke: #14191C;
      stroke-width: 2px;
    }
    .sigma-node:hover {
      fill: blue;
    }
    .muted {
      fill-opacity: 0.1;
      stroke-opacity: 0.1;
    }
  </style>
  <div id="graph-container"></div>
</div>

<script>
/**
 * This is a basic example of how one could spawn a freestyle svg renderer
 * to achieve his/her goal through css and jQuery to display fancy graphs
 * but somewhat less performant.
 */
var i,
    s,
    N = 100,
    E = 500,
    g = {
      nodes: [],
      edges: []
    };

// Generate a random graph:
for (i = 0; i < N; i++)
  g.nodes.push({
    id: 'n' + i,
    label: 'Node ' + i,
    x: Math.random(),
    y: Math.random(),
    size: Math.random(),
    color: '#666'
  });

for (i = 0; i < E; i++)
  g.edges.push({
    id: 'e' + i,
    source: 'n' + (Math.random() * N | 0),
    target: 'n' + (Math.random() * N | 0),
    size: Math.random(),
    color: '#ccc'
  });

// Instantiate sigma:
s = new sigma({
  graph: g,
  settings: {
    enableHovering: false
  }
});

s.addRenderer({
  id: 'main',
  type: 'svg',
  container: document.getElementById('graph-container'),
  freeStyle: true
});

s.refresh();

// Binding silly interactions
function mute(node) {
  if (!~node.getAttribute('class').search(/muted/))
    node.setAttributeNS(null, 'class', node.getAttribute('class') + ' muted');
}

function unmute(node) {
  node.setAttributeNS(null, 'class', node.getAttribute('class').replace(/(\s|^)muted(\s|$)/g, '$2'));
}

$('.sigma-node').click(function() {

  // Muting
  $('.sigma-node, .sigma-edge').each(function() {
    mute(this);
  });

  // Unmuting neighbors
  var neighbors = s.graph.neighborhood($(this).attr('data-node-id'));
  neighbors.nodes.forEach(function(node) {
    unmute($('[data-node-id="' + node.id + '"]')[0]);
  });

  neighbors.edges.forEach(function(edge) {
    unmute($('[data-edge-id="' + edge.id + '"]')[0]);
  });
});

s.bind('clickStage', function() {
  $('.sigma-node, .sigma-edge').each(function() {
    unmute(this);
  });
});
</script>

</body>
</html>

谢谢！

标签： javascriptpythonhtmlflaskgraph

javascript - HTML 在单击时显示图形，但在烧瓶中访问时不显示

问题描述

解决方案

推荐阅读